Seiko watches have a 6 or 7 character serial number on their casebacks. The second character can be a letter but the rest are all numbers. Zotac g210 driver download. You can use the Seiko serial number in conjunction with the movement number to calculate the year of manufacture. 1 All modern Seiko watches have the date of manufacture contained in the 6 digit serial number. Exceptions are pre-1970 models when the numbers were 7 digits long. Look at the serial number. The first digit of the serial number represents the year within the decade (for example, if your watch was made in 1995, the serial number would begin with a 5). The second digit represents the month. The numbers 1-9 stand for the months January-September, with O for October, N for November and D for December. The first number represents the year and the second number (or letter) represents the month (1-9 for Jan.-Sept. And O,N and D for October, November and December).For example if the serial number was 864825 and you knew the watch was made sometime in the 1970's it would indicate it to be made in June 1978.
Seiko Serial Number Chart
Old Seiko Watches Value
All Seiko's should have a Serial number on the case back
The first number in the Serial is the last number in the year of production, and so if it is a new watch and you see an 8 it should be the year 2008
The second number in the Serial is the month the watch was made if you see a 4 it will be the month of April
most Seiko serial are 6 digits long and so a serial of 86XXXX would be a watch made in April of 2008
The key to the whole trick is knowing what movement is in side and older movement like the 6309 was made in the late 70's and 80's and so a watch with 86XXXX would be April 1988 and so on ..
A note on months since only one numberis used for the months Oct / Nov / Dec being two numbers is noted by letter
if you see a Zero it is a letter O for October N= Nov D= Dec
8DXXXX would be December 2008 8OXXXX would be October 2008
It does help to know a little about movement production dates when dating watches on the street but if you have a computer handy you can always drop by these fine websites:
Seiko Watch Production Date Calculator
http://www.csce.uark.edu/~jgauch/tools/seiko.html
Seiko production date finder
http://speedtimerkollektion.com/images/ .. finder.htm
